Re: Casting on the limit - Mailing list pgsql-bugs

From Ottó Havasvölgyi
Subject Re: Casting on the limit
Date
Msg-id 34608c0c0801210308g1e4583baiee415029d98f12b7@mail.gmail.com
Whole thread Raw
In response to Re: Casting on the limit  ("Heikki Linnakangas" <heikki@enterprisedb.com>)
List pgsql-bugs
Thank you:)  I didn't even thought of this case. I am a bit surprised
that "::" has higher precedence than negation, but maybe it has some
cause.
Sorry for sending it to this list.

Best regards,
Otto

2008/1/21, Heikki Linnakangas <heikki@enterprisedb.com>:
> Ottó Havasvölgyi wrote:
> > In 8.2.5:
> >
> > This does not work (out of range):
> > select -32768::int2
> >
> > But this works:
> > select cast(-32768 as int2);
> >
> > What is the difference between the two syntax in the background? I
> > always thought they are the same.
>
> "select -32768::int2" is equal to "select -(32768::int2)", and 32768
> doesn't fit in an int2.
>
> --
>   Heikki Linnakangas
>   EnterpriseDB   http://www.enterprisedb.com
>


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